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GPON (Gigabit Passive Optical Network)-based service bandwidth distribution method and device

A bandwidth allocation method and service technology, applied in the communication field, can solve problems such as not considering service delay requirements

Active Publication Date: 2018-11-13
XFUSION DIGITAL TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It can be seen from the above process that DBA dynamically allocates bandwidth based on the bandwidth requirements of the business, and does not consider the delay requirements of the business in the process of bandwidth allocation.

Method used

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  • GPON (Gigabit Passive Optical Network)-based service bandwidth distribution method and device
  • GPON (Gigabit Passive Optical Network)-based service bandwidth distribution method and device
  • GPON (Gigabit Passive Optical Network)-based service bandwidth distribution method and device

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Experimental program
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Embodiment Construction

[0037] DBA supports three allocation bandwidth types: fixed bandwidth, guaranteed bandwidth, and best-effort bandwidth. The fixed bandwidth is completely reserved for a specific ONU or a specific service of the ONU. Even if the ONU has no upstream fixed bandwidth service flow, the OLT still allocates the fixed bandwidth for the ONU, and this part of the bandwidth cannot be used by other ONUs. Guaranteed bandwidth is the guaranteed bandwidth available to the ONU, which is dynamically allocated by the OLT according to the amount of cached data reported by the ONU. The best-effort bandwidth is allocated by the OLT to each ONU according to the amount of cached data reported by all online ONUs in the GPON system. The system does not guarantee the amount of bandwidth obtained by the ONU or specific services of the ONU.

[0038]For guaranteed bandwidth and maximum bandwidth (or called best-effort bandwidth) modes, at least 3 uplink cycles are required from when the ONU reports the am...

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PUM

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Abstract

The embodiment of the invention provides a GPON (Gigabit Passive Optical Network)-based service bandwidth distribution method and device, so that an ONU (Optical Network Unit) can meet a delay requirement of a service according to a process of distributed bandwidth transmission service flow. The method comprises the following steps that: a network element acquires a second data volume according toa service transmission parameter of a delay-sensitive service, wherein the second data volume is a data volume transmitted by the ONU by adopting a fixed bandwidth in a first uplink period; when a first data volume is greater than the second data volume, the network element determines a first dynamic bandwidth to be configured, wherein the first dynamic bandwidth is a dynamic bandwidth required by the ONU in the first uplink period; the network element acquires a third data volume according to the first data volume and the second data volume, wherein the third data volume is a data volume transmitted by the ONU by adopting the first dynamic bandwidth in the first uplink period; and the network element completes configuration of the fixed bandwidth and the first dynamic bandwidth accordingto the second data volume and the third data volume.

Description

technical field [0001] The invention belongs to the technical field of communication, and in particular relates to a service bandwidth allocation method and device based on a gigabit-capable passive optical network (GPON) system. Background technique [0002] figure 1 A schematic structural diagram of a GPON network is shown. Such as figure 1 As shown, the GPON system includes an optical network unit (optical network unit, ONU), an optical line terminal (optical line terminal, OLT) and an optical distribution network (optical distribution network, ODN). The OLT provides an interface between the network side and the core network for the access network. OLT has the functions of centralized bandwidth allocation, ONU control, real-time monitoring and operation, maintenance and management of GPON system. The ONU provides a user-side interface for the access network. The OLT can be connected to one or more ONUs through an optical distribution network (ODN). The ODN includes ...

Claims

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Application Information

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IPC IPC(8): H04L12/841H04L12/801H04L12/911H04L12/927H04Q11/00H04L47/76H04L47/80
CPCH04L47/283H04L47/29H04L47/805H04L47/826H04Q11/0062H04Q2011/0086H04L47/83H04Q11/00
Inventor 蔡圣明查毅勇朱恒军叶瑞
Owner XFUSION DIGITAL TECH CO LTD
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